3 years ago

Facile and scalable preparation of nitrogen, phosphorus codoped nanoporous carbon as oxygen reduction reaction electrocatalyst

Facile and scalable preparation of nitrogen, phosphorus codoped nanoporous carbon as oxygen reduction reaction electrocatalyst
Herein, a series of non-precious metal catalysts, nitrogen, phosphorus co-doped porous carbon (NP-PC) materials are successfully fabricated via a facile pyrolysis and activation strategy employing low-cost precursors. Among all prepared catalysts, the optimized NP-PC-0.5 (with 0.5wt% FeCl3) possesses comparable catalytic activity to that of state-of-the-art commercial Pt/C (C-Pt/C) catalyst. Noticeably, it exhibits significantly superior methanol crossover resistance and better stability than C-Pt/C. The synergetic effect between nitrogen and phosphorus, together with nanoporous structure endow NP-PC-0.5 with practical significance of applicability, rendering it as a promising candidate of Pt-based electrocatalysts in fuel cells. This preparation approach is facile and scalable for fabricating non-precious metal electrocatalysts.

Publisher URL: www.sciencedirect.com/science

DOI: S0013468617314500

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